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04/16/99 FRI 1.4:28 FAX 530 8781622 viiv�u u:i�v-i <br /> . G8f1 Cfsesapeake Drlue j Redwood Chy.CA 94063 (650)36;-%b00 FAX(650)364-4x33 <br /> Analytical <br /> 404 N.11vRget lane I Walnut Creek 01194596 (9z5)"S-960D FAX(9Z5)9W-%73 <br /> Analytical ass wm-myweo w d scab.ste.n � P�hrma.�cAk949ss4 5634-- ��oij r9i ieb05 FAX <br /> {toij nisi-o3i2 <br /> 1551 Industrial Road San Carlos,CA 970111 (650)232-9600 FAX(650)232-9612 <br /> l <br /> ATC Associates. Inc. Client Project I : AT&T Lodi 61 OSS-0019 <br /> 1117 Lorre Palm Avenue <br /> Modesto, CA 95351-1502 <br /> Attention: David Oliver QC Sample Group: 9903152-01-04 Reparted: Mar 9, 1999 <br /> QUALITY CONTROLiDATA REPORT <br /> Matrix: Solid <br /> Method: EPA 8015 I <br /> Analyst: R.GECKLER j <br /> ANALYTE Gasoline <br /> QC Reich#: GCO305990TEXEXA <br /> Sample No.: 9902DES-1 <br /> Date Prepared: 3!5/99 <br /> Date Analyzed: 315199 <br /> bas Ument LOS: GCHP22 <br /> Semple Coat:.,mg/Kg: N.D. l <br /> Cone.8plked,mglKil: 5.0 <br /> Niatdx Spike.mgift 5.0 <br /> %Recovery: 100 <br /> {l <br /> Matrix 1 <br /> Spike Duplicate.mg/Kg: 4.5 11 <br /> % Recovery: 80 <br /> Relative%Difference: 11 <br /> HPV Control Limits: 0-25 <br /> LCS Batch#.GC030599BTEXEXA <br /> Data Prepared: 3/6199 <br /> Data Analyzed: 316199 <br /> Instrument I.D.R: GCHP22 <br /> Cone.Spiked.mii tg: 5.0 <br /> Recovery.mgltg: 5.4 <br /> LCS%Recovery: 106 <br /> Percent Recovery Control Limits: <br /> NdSIMSo 50-140 <br /> LCS 70-1315 <br /> Quality Assurance Statement: All standard operating procedures and uality control requiremerlte have been met. <br /> r4m Note: <br /> The LCS Is a control sampis of kwn,interlerent tree matrix that is artaiyzad using the*am*ma9onts. <br /> SEQUOIA ANALYTICAL prmparadon,avid anafytfcal rnevWS { played for rix sarnplea. This matrk spike is an airluot of sample <br /> * } fortified with known quantities of ap II f+c compounds and aLNacted to the entire analytical procedure. tf <br /> the recovery of anstytas from the r>w�iX apika doom not fall within epeciBed control lWks due to matrix <br /> ijwfwww%tM WS rec Is to 6a used to validate the batch. <br /> Ka Kirnyai <br /> Project Manager <br />